Data sets from "Introductory Statistics for Engineering Experimentation"


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Documentation for package ‘EngrExpt’ version 0.1-8

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absorb Oil absorption of silica
adhesion Adhesive qualities of a lens coating
adhesion2 Adhesive qualities of a lens coating
alum Aluminum impurity amounts
applicat Application of powder coating
assay Yield from two processes
bacteria Bacteria count in water samples
bath Electrical resistance after water bath
battery Battery lifetime in laptop computers
bright Brightness of de-inked newspaper
calcium Calcium levels before and after taking vitamin
caliper Diameters of rods measured by two calipers
ccthickn Clear coat thickness
cement Drying times of concrete
cheese Percentage fat in cheese
chemreac Yield of a chemical reaction
computer Repair time of computers
cure Yield from a chemical curing process
curl Curl of transparencies
defoam Height of solution with defoamer
deink De-inking of newsprint
deink2 De-inking of newsprint
dhaze Haze of lenses after abrasion
diagnostic Consistency of diagnostic kits
diameter Diameter of product
drought Water usage in 2001 and 2002
drums Weights of drums before and after filling
dry Moisture content after drying
epoxy Effect of epoxy level on appearance
exposure Appearance of panels after exposure to weather
fbuild Appearance for film builds
fill Fill amount in tamped cylinders
fillweight Fill weight by batch
fish Toxin concentrations in fish by site
fish2 Toxin concentrations in fish by site
fluoride Fluoride levels from water sources
gloss Gloss of paint on cars
labcomp Inter-lab study
lw Automotive paint formulation
lwsw Appearance measures of automotive paints
moisture Moisture content of a silica product
mw Appearance measure of paint
odor Odor, yellowing and hardness of optical coating
oven Drying of silica
ph pH measurements in a chemical process
phmeas Comparison of instruments to measure pH
pigment Yellowing of paint for different pigments
protein Assay of protein in blood
purity Purity of product from a filtration process
railcar Rail car hold times
railcar2 Rail car hold times
railcar3 Moisture level versus type of rail car
ratings Ratings of raw materials
ratings2 Product ratings and moisture content
reflect Anti-reflective coating measurements
safety Safety violations over time
sales Sales versus capital expenditure
sarea Surface area of silica
separate Electrical resistance of battery separators
soap Soap sales by packaging type
stab Stability of a chemical product
stretch Stretch of hot pizza cheese
surfarea Surface area of silica
tablets Lifetime of chlorine tablets
temprate Effect of water bath on moisture content
tennis Durability of tennis ball covers
tensile Tensile breaking strength of steel samples
thinfilm Strength of thin film coatings
timetemp Time to nominal temperature
tpaste Turbidity of a toothpaste formulation
urine Mercury level in employee urine samples
uvcoatin Comparison of eyeglass ultra-violet coatings
uvoven UV absorbance for lens cured in different ovens
viscosity Time to gelling of paint samples
vitamin Calcium levels before and after vitamin supplement
wash Appearance of washed and unwashed panels
water Bacteria concentrations in water samples
webtraff Web site traffic during a marketing campaign
webvisit Web site visits over a 3-week period
weight Weight plastic bags held before breaking
whitearea Comparison of mixing processes
yellow Initial and 1 month color measure of coated lens
yield Yield of a chemical process